PubMed چکیده/رکورد

Segmental Bone Defects: Solutions to a Difficult Problem.

Thomas J Chang, Thomas H Jordan, Kristina S Corley, Angela Moon• 2026• Clinics in podiatric medicine and surgery
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پخش حرفه‌ای فارسی و انگلیسی

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چکیده اصلی

Segmental bone loss in the foot and ankle-from infection, nonunion, avascular necrosis, or trauma-has long lacked reliable solutions, with historic femoral head allograft fusions achieving only approximately 50% union because revascularization often fails across defects larger than 2 cm. Newer 3 dimensional-printed custom metallic implants (titanium and cobalt chrome) bridge these defects with markedly higher integration rates (approximately 91% vs 61% for allografts). Total talus and hemitalus replacements restore hindfoot anatomy with promising short-term outcomes and good patient-reported measures. Success depends on correct implant sizing, robust beaming/plating fixation, and biomechanical planning for shear loaded medial and lateral colums.

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کلیدواژه‌ها

Hemitalus replacementLimb salvageSegmental bone defectsTibiotalocalcaneal fusionTotal talus replacement
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